An exploratory analysis of PM /PM ratio during spring 2016-2018 in Metropolitan Lima.

Aerosols (PM and PM ) represent one of the most critical pollutants due to their negative effects on human health. This research analyzed the relationship of PM and its PM /PM ratios with climatic variables in the austral spring (2016-2018) in Metropolitan Lima. Overall, there was an average PM /PM ratio of 0.

Statistical modeling approach for PM prediction before and during confinement by COVID-19 in South Lima, Perú.

A total of 188,859 meteorological-PM[Formula: see text] data validated before (2019) and during the COVID-19 pandemic (2020) were used. In order to predict PM[Formula: see text] in two districts of South Lima in Peru, hourly, daily, monthly and seasonal variations of the data were analyzed. Principal Component Analysis (PCA) and linear/nonlinear modeling were applied.